ESI C-Plus Installation Manual download pdf (Page 4)

ESI-50L Hardware Installation Manual Overview

A.2

NSP

Built into the main board, the NSP (Network Services Processor) serves as a bridge between an Ethernet-

based network and the ESI-50L. Using TCP/IP, the NSP communicates directly with specific PC applications for

maintenance of, and integration with, the ESI-50L.

The NSP manages optional features such as VIP and phone control via TAPI PC applications; it also provides

access to not only maintenance and administration (through use of ESI System Programmer software) but also

an Installer-selectable SMDR interface.

The NSP hardware interface consists of a dedicated Ethernet port. Its external RJ-45 jack provides a

10/100Base-T connection to the LAN. The NSP consumes no call-processing ports.

Note: The ESI-50L provides one Ethernet port for access to the NSP.

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ESI C-Plus Installation Manual Page 4